AWWA C906-15 describes polyethylene (PE) pressure pipe and fittings made from materials conforming to standard PE materials designation codes PE 2606, PE 2706, PE 2708, PE 3608, PE 3708, PE 3710, PE 4608, PE 4708, and PE 4710. The pipe and fittings are primarily intended for use in transporting potable water, wastewater, and reclaimed water in either buried or aboveground installations. The standard describes 12 dimension ratios (DRs) for nominal pipe and fitting sizes ranging from 4 in. through 65 in. (100 mm through 1,650 mm). The purpose of this standard is to provide purchasers, manufacturers, and suppliers with the minimum requirements for PE pressure pipe and fittings, 4 in. through 65 in. (100 mm through 1,650 mm), for potable water, wastewater, and reclaimed water distribution and transmission. This standard can be referenced for purchasing and receiving PE pressure pipe and fittings, 4 in. through 65 in. (100 mm through 1,650 mm), for potable water, wastewater, and reclaimed water distribution and transmission. The stipulations of this standard apply when this document has been referenced and then only to PE pressure pipe and fittings, 4 in. through 65 in. (100 mm through 1,650 mm), for potable water, wastewater, and recycled water distribution and transmission.